From what I've heard, the green bubbles shown for non-iPhone users have a disproportionate effect in the US. There are also their strong lock-ins, like incompatible connectors and the difficulty of migrating your data to Android devices.
From what you hear, people are saying, there are those who would say, it has been suggested, ... stop pretending to be Fox News and pony up some hard data. Not that it will do you much good. You could make the same claim about any luxury brand or product having this same kind of 'effect'. That 'effect' is why people buy luxury anything. A luxury car/truck isn't really a car/truck, it's an insult that you can drive.
In Europe it's kind of the opposite - the iPhone is what people who don't know about phones and corporations get. Deeply uncool and suggesting that the owner is not tech savvy or had no choice. In China, iPhones are affordable to mid-range because there are so many used ones. People with money get a Huawei or Xiaomi.
Something happened in the US that didn't happen elsewhere for some reason. Stricter competition laws? I don't think it is a preference for home-grown tech as in Europe Samsung and Google are quite popular.
Nope, for the most part, hardly anybody in Europe gives a crap about what kind of phone you've got your nose buried in. Most Europeans will be annoyed at you for having your nose buried in a phone, any phone at all, instead of paying attention to what you are doing, ... like driving. Nobody much cares about the brand. I expect I's much the same is true in the USA and Asia.
Oh, and thanks to the EU for killing Lightning connectors off.
This is true.